The Nexus Clodius Ventilation Pro Series is a great case to build an optimal ventilated computer. The Clodius case is equipped with two Real Silent 120mm case fans (black/white-version). These fans are mounted with ultra soft silicone fan mounts to prevent resonance and vibrations. When more airflow is needed you can mount an extra 80, 92 or 120mm fan on the ceiling of the case and/or an 80mm fan at the unused PCI slots. The soft rubber feet prevents overall resonance of the case. With fan controller... To keep control of the temperature inside the Clodius your power button has a double function as an illuminated fan controller. The light around the button changes when the heat goes up, you then can turn the dial button to adjust the speed of both mounted 120mm case fans. The fans have a speed range between 1000 RPM and 1700 RPM for perfect temperature condition.               Model number: Motherboard size: PSU: Case fans: Fan mounts: Fan controller: Front ports: 5.25" bay 3.5" bay HDD bays: Thumb screws: Airflow: Case size: Case weight:     Clodius ATX/M-ATX Not supplied 2x 120mm | 1000~1700RPM Ultra-soft silicone fan mounts Dial with LED in front connects 2 fans 2x USB 2.0, MIC and AUDIO 4x front accessible (2x with DVD door) 1x front accessible 7 HDD bays 12 pieces supplied 36.87CFM / (62.61m3/hour) 41.9 x18 x 49.5 (L x W xD) 6.2KG       Illuminated fan controller One of the unique features of this case is the illuminated fan controller. Inside the case is a temperature sensor which measures the temperature inside the case. When the controller indicates blue then the inside temperature is at it's best and the controller can be set at it's lowest speed. When the heat goes up the controller will turn violet, noticing this you can improve the internal conditions by setting the fan speed to medium speed to increase airflow and cooling. When the temperature inside the case rise too high the controller light will turn red and it is advised to turn the dial at full speed. The two pre-installed fans will then turn at 1700 RPM and will push a massive airflow through your system. This will guarantee optimal silence and superb cooling when necessary! Fan intake filter The Clodius case is equipped with an easy accessible and cleanable fan filter at the air intake. From the front of the case press on the fan filter door to open. The lid opens and you have easy access to the filter. Take out the fan filter for cleaning. It is recommended to clean the filter regularly to make sure airflow will not be obstructed. If not cleaned regularly it could damage your case fans and/or eventually your processor or motherboard.     Two 120mm Real Silent Case Fans The Nexus Clodius case is equipped with two real silent black and white case fans. The fans fitted inside the case are set with fan speed range of 1000 to 1700 RPM to be set with the front fan controller. Thumb Screws The Nexus Clodius is full of surprises. Behind the lowest 5.25" bay are twelve thumb screws. You can use these thumb screws for your HDD, case panels etc.